.login_box {
  width: 100%;
  height: 100%;
  background-color: skyblue;
  display: flex;
  justify-content: center;
  align-items: center;
  background-image: url(https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fwww.pptdiy.com%2Fupload%2Fnew%2F%E4%B8%AD%E5%9B%BD%E9%A3%8EPPT%E8%83%8C%E6%99%AF%E5%9B%BE%E7%89%87%E5%90%88%E9%9B%86-2.jpg&refer=http%3A%2F%2Fwww.pptdiy.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=jpeg?sec=1637658607&t=a2397f29505458b70ca1ddcd542a2cf8);
  background-size: 100%;
  > .login {
    width: 500px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
}
